To find the total volume of goods transported during 2002 and 2003 altogether, you need to add the amounts for each year:
- Volume in 2002: 670,192 tons
- Volume in 2003: 689,670 tons
Now, add the two amounts:
\[ 670,192 , \text{tons} + 689,670 , \text{tons} = 1,359,862 , \text{tons} \]
So, the total volume of goods transported during 2002 and 2003 altogether is 1,359,862 tons.